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A Nonlinear Dynamic Model and Free Vibration Analysis of Deployable Mesh ReflectorsThis paper presents a dynamic model of deployable mesh reflectors, in which geometric and material nonlinearities of such a space structure are fully described. Then, by linearization around an equilibrium configuration of the reflector structure, a linearized model is obtained. With this linearized model, the natural frequencies and mode shapes of a reflector can be computed. The nonlinear dynamic model of deployable mesh reflectors is verified by using commercial finite element software in numerical simulation. As shall be seen, the proposed nonlinear model is useful for shape (surface) control of deployable mesh reflectors under thermal loads.
Document ID
20120007444
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
hdl:2014/42049
Authors
Shi, H. (University of Southern California Los Angeles, CA, United States)
Yang, B. (University of Southern California Los Angeles, CA, United States)
Thomson, M. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Fang, H. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 25, 2013
Publication Date
April 4, 2011
Subject Category
Mathematical And Computer Sciences (General)
Meeting Information
Meeting: 12th AIAA Gossamer Systems Forum
Location: Denver, CO
Country: United States
Start Date: April 4, 2011
End Date: April 7, 2011
Sponsors: American Inst. of Aeronautics and Astronautics
Distribution Limits
Public
Copyright
Other
Keywords
mesh reflectors
reflector accuracy
wide frequency bandwidth.
space applications
reflector high resolution

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